nanocore | 5e080ae679b6a3ca135bdc54533a9410e121da4e729c7837ac20184c50edd2bf

Analysis

max time kernel
90s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
10/11/2022, 12:34

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
c4e469dc16845f47a064a197782a83c2.exe
Size 784KB
Sample221110-prswaahgh8
SHA256 5e080ae679b6a3ca135bdc54533a9410e121da4e729c7837ac20184c50edd2bf
MD5 c4e469dc16845f47a064a197782a83c2
SHA1 40e6aaf15e19a2cb4c26e2694759dc391da09612
SHA512 77c5a1bd4581f599cac6ff9f2f44d1bb5e7be299c0c48df79d7c5cf42d60c0c71debc23f4e951253d3c5296c179fb4af19010b9d223e780841f4c525a5fd4385
SSDEEP 24576:dQlphoyLJnMh4yqAwNdG2Dd9+Wi35IcYz:FSW94R9FSY
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

jasonbourne.bounceme.net:4032
127.0.0.1:4032

Mutex

feea6769-cb83-46a0-b37c-19e71205de20

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-08-21T08:40:14.683546936Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
4032
default_group
NOV9
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
feea6769-cb83-46a0-b37c-19e71205de20
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
jasonbourne.bounceme.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.exe"	c4e469dc16845f47a064a197782a83c2.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	c4e469dc16845f47a064a197782a83c2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1608 set thread context of 3104	1608	c4e469dc16845f47a064a197782a83c2.exe	88

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	c4e469dc16845f47a064a197782a83c2.exe
File opened for modification	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	c4e469dc16845f47a064a197782a83c2.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3240	schtasks.exe
3556	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3104	c4e469dc16845f47a064a197782a83c2.exe
3104	c4e469dc16845f47a064a197782a83c2.exe
3104	c4e469dc16845f47a064a197782a83c2.exe
3104	c4e469dc16845f47a064a197782a83c2.exe
3104	c4e469dc16845f47a064a197782a83c2.exe
3104	c4e469dc16845f47a064a197782a83c2.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3104	c4e469dc16845f47a064a197782a83c2.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3104	c4e469dc16845f47a064a197782a83c2.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 3104	1608	c4e469dc16845f47a064a197782a83c2.exe	88
PID 1608 wrote to memory of 3104	1608	c4e469dc16845f47a064a197782a83c2.exe	88
PID 1608 wrote to memory of 3104	1608	c4e469dc16845f47a064a197782a83c2.exe	88
PID 1608 wrote to memory of 3104	1608	c4e469dc16845f47a064a197782a83c2.exe	88
PID 1608 wrote to memory of 3104	1608	c4e469dc16845f47a064a197782a83c2.exe	88
PID 1608 wrote to memory of 3104	1608	c4e469dc16845f47a064a197782a83c2.exe	88
PID 1608 wrote to memory of 3104	1608	c4e469dc16845f47a064a197782a83c2.exe	88
PID 1608 wrote to memory of 3104	1608	c4e469dc16845f47a064a197782a83c2.exe	88
PID 3104 wrote to memory of 3240	3104	c4e469dc16845f47a064a197782a83c2.exe	89
PID 3104 wrote to memory of 3240	3104	c4e469dc16845f47a064a197782a83c2.exe	89
PID 3104 wrote to memory of 3240	3104	c4e469dc16845f47a064a197782a83c2.exe	89
PID 3104 wrote to memory of 3556	3104	c4e469dc16845f47a064a197782a83c2.exe	91
PID 3104 wrote to memory of 3556	3104	c4e469dc16845f47a064a197782a83c2.exe	91
PID 3104 wrote to memory of 3556	3104	c4e469dc16845f47a064a197782a83c2.exe	91

C:\Users\Admin\AppData\Local\Temp\c4e469dc16845f47a064a197782a83c2.exe
"C:\Users\Admin\AppData\Local\Temp\c4e469dc16845f47a064a197782a83c2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Users\Admin\AppData\Local\Temp\c4e469dc16845f47a064a197782a83c2.exe
  "C:\Users\Admin\AppData\Local\Temp\c4e469dc16845f47a064a197782a83c2.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3104
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3D28.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3240
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3DD5.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3556

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

c4e469dc16845f47a064a197782a83c2.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c4e469dc16845f47a064a197782a83c2.exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

Submit Download

tmp3D28.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp3D28.tmp
Size 1KB
SHA256 7cfb24ca87e8a120210a0bd553dbb30deaff0b09bddedb820135763efa9a8b31
MD5 b01f0283431a7300fabf743a31d6a76a
SHA1 7b5ded84079edca8747703c23e77f7384182064b
SHA512 7f684fe72f430d87da18b268d563d1ce5d5d6f81994ee38fa9a5115ada844e10a6036183471314278aa8af5bfea84dccd1d15533801f2193e0d7e5419e178239
MD5 SHA1 SHA512

Submit Download

tmp3DD5.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp3DD5.tmp
Size 1KB
SHA256 99a158463ce40c750bad6991ae1fceece305a0dbf8e209dd7147b5d539756bfa
MD5 2f26d92c1eeead3896820e56ec46f6f1
SHA1 d95533b61eed7d89e4ada56bc566d60e42ac1f61
SHA512 6c1ed12d5e1afcd9e7f327e0153786fd8594f75a995f341c408ef014e69917452a9fe99c511f0249aceb57b3045b707f1fd3f404e4086cfbf0aadcb3318db892
MD5 SHA1 SHA512

Submit Download

memory/1608-135-0x0000000004E20000-0x0000000004E2A000-memory.dmp

Download

memory/1608-136-0x0000000007470000-0x000000000750C000-memory.dmp

Download

memory/1608-132-0x0000000000390000-0x000000000045A000-memory.dmp

Download

memory/1608-134-0x0000000004E90000-0x0000000004F22000-memory.dmp

Download

memory/1608-133-0x00000000053A0000-0x0000000005944000-memory.dmp

Download

memory/3104-138-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/3104-144-0x00000000074F0000-0x0000000007556000-memory.dmp

Download